As a tyre manufacturer once said, "power is nothing without control." It is entirely possible to have a car with too much power that can't deliver that power to the road, or delivers it in such a way to make it harder to drive, than a car that has less power but is more planted.
Thanks for that helpful insight. Sometimes you don't have to post...How are we supposed to know? Ask Kaz on twitter or something.
You are looking at a different car, OP asked for the engine swapped BRZ.There are a couple things it could be.
It looks like you’re comparing a swap from high rpm turbo to ultra, is that right?
I did the same thing with the base car for that engine to get the same torque and HP stats.
It may behave different in the swap version but it also could be as simple as a ballast/weight & aero combination at that power, like a glitch. You can test this by altering the aero/ballast/weight to see if it changes back to a higher pp
When there’s a glitch like this (and they’re common) you will often see the number for “High Speed Rotational G” go down, which saves pp.
For example, sometimes evening removing the ballast to a certain number makes the pp less when it should go higher; again, it will be reflected by a decrease in the “rotational g” section
View attachment 1259708
Yes, I pulled up the car that donates his engine swap hoping to isolate if it’s just changing to that turbo (on same engine) lowers the pp or if it only happens after swap as sometimes higher power turbo has less pp (like when a slightly less powerful med turbo boosts pp more from a better power band)You are looking at a different car, OP asked for the engine swapped BRZ.
But anyway, you are right, PP decrease can often be seen in a change of the G values.
These changes are what is puzzeling sometimes, but sometimes also correct, for example in case the engine is delivering too much power causing an upset in acceleration balance, or with a shift in weight distribution making the car unstable.
PP going down isnt always a bug, but at the same time PP is so bad of a reprensation of performance.
It is weight to power, blue means "better", less weight per power because power went up -> 1000kg to 500hp would be 2kg/hp 1000kg to 1000hp would be 1kg/hpIs the new engine heavier? The power to weight ratio went down with the new engine, likely where the PP loss came from.
Right, but that’s not the swap engine screen and the evaluation doesn’t show a change in weight. It is the perfect difference between high and ultra turboIs the new engine heavier? The power to weight ratio went down with the new engine, likely where the PP loss came from.
Are there situations where it shows a decrease in PP calculation but in reality the car is much better?Because the car in that configuration does worse in the simulated tests that make up the PP calculation.
Are there situations where it shows a decrease in PP calculation but in reality the car is much better?There are a couple things it could be.
It looks like you’re comparing a swap from high rpm turbo to ultra, is that right?
I did the same thing with the base car for that engine to get the same torque and HP stats.
It may behave different in the swap version but it also could be as simple as a ballast/weight & aero combination at that power, like a glitch. You can test this by altering the aero/ballast/weight to see if it changes back to a higher pp
When there’s a glitch like this (and they’re common) you will often see the number for “High Speed Rotational G” go down, which saves pp.
For example, sometimes evening removing the ballast to a certain number makes the pp less when it should go higher; again, it will be reflected by a decrease in the “rotational g” section
View attachment 1259708
Not directly (as far as I am aware of), but because of the PP drop you can do other things to again increase PP to a level still within the chosen events limit.Are there situations where it shows a decrease in PP calculation but in reality the car is much better?
What does a 1200hp Supra and a 700hp Supra have in common? They both run 11s in the quarter-mile.As a tyre manufacturer once said, "power is nothing without control." It is entirely possible to have a car with too much power that can't deliver that power to the road, or delivers it in such a way to make it harder to drive, than a car that has less power but is more planted.
The 2JZ-GTE is a 3.0 inline 6, and the car does gain weight when you actually do the engine swap.I’m a little bothered by the lack of detail on PD’s part. In this case taking out the 2L 4 cylinder engine, for a 3.5L V6, would add a fair bit of weight to a car. PD is usually decent at those little details, but not in this case.
Heck, years ago my buddy had to swap the springs out of the front of his civic, after sealing the 1.6 out for an H22, and that’s only going up .6 in displacement.
Definitely. The PP score doesn’t say how good the car is, it is just used to determine if the car meets the regulations for some events.Are there situations where it shows a decrease in PP calculation but in reality the car is much better?
ThanksDefinitely. The PP score doesn’t say how good the car is, it is just used to determine if the car meets the regulations for some events.
You get a better idea of the actual performance by looking at the stats about acceleration and cornering, and thinking about how that might affect your lap times depending on what kind of circuits you’re going to be racing on.
Are there situations where it shows a decrease in PP calculation but in reality the car is much better?
Definitely. The PP score doesn’t say how good the car is, it is just used to determine if the car meets the regulations for some events.
You get a better idea of the actual performance by looking at the stats about acceleration and cornering, and thinking about how that might affect your lap times depending on what kind of circuits you’re going to be racing on.
As a tyre manufacturer once said, "power is nothing without control." It is entirely possible to have a car with too much power that can't deliver that power to the road, or delivers it in such a way to make it harder to drive, than a car that has less power but is more planted.
Although there also is the fact the PP system is broken in several ways.
Thanks for that helpful insight. Sometimes you don't have to post...
Those are all independent variables. It’s impossible to compress them into a single number without losing almost all of the information. Which is why the PP score is for determining whether a car is eligible for an event - not for determining how good it is for said event. You will always get more and better information by looking at the acceleration and cornering results than at the final score.The PP is literally calculated based off of the results of those cornering and acceleration tests.
Those are all independent variables. It’s impossible to compress them into a single number without losing almost all of the information. Which is why the PP score is for determining whether a car is eligible for an event - not for determining how good it is for said event. You will always get more and better information by looking at the acceleration and cornering results than at the final score.
We know for a fact that it isn't, hence the reason gear ratios have no bearing on a cars PP rating.The PP is literally calculated based off of the results of those cornering and acceleration tests.